JP3193447B2 - Substation transmission control method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling transmission of a slave station in a communication apparatus using a single radio, and to an apparatus therefor.

[0002]

2. Description of the Related Art Conventionally, a communication apparatus using a single radio employs a press talk method. In the press talk system, a call is made by switching the call direction in a single radio where simultaneous two-way calls cannot be made. In this method, the call direction is switched by a press talk switch, and the talker secures a transmission channel by pressing the press talk switch when talking and performs a call, and receives a call of the other party. In some cases, the press talk switch is released to pass the transmission channel to the other party to listen to the talk.

[0003]

However, the communication device using the single radio having the above configuration has the following problems. (1) In a single wireless device, when the transmission control of the slave station is performed by the press-talk method, there is a problem that if the slave station performs continuous transmission, communication between other stations cannot be performed. . For this reason, for example, in the case of an emergency contact device using a single radio installed in a cycling course or the like, if the call is extended for a long time, or if transmission is continued by a mischief operation, the transmission is terminated. There is a problem that other stations cannot be used and emergency use cannot be performed. (2) In order to solve the above-mentioned problems, when the time that a slave station can transmit is limited by limiting the time with a timer or the like, the transmission time and the number of times of transmission required by the slave station may vary depending on the user. Since they are different, a single transmission time cannot be specified, and there is a problem in that the transmission time is often not practical. (3) Also, when the user of the slave station is unfamiliar with the communication device,
Alternatively, if the person is sick or injured, the method cannot be used because the transmission method cannot be understood.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and prevents a communication disturbance due to continuous transmission of a slave station in a single wireless device, and a transmission control method in which a slave station's transmission operation is simplified like an interphone. It is intended to provide a device.

[0005]

In order to achieve the above object, in a transmission control method of a slave station in communication using a single radio, a master station receives a call request signal of the slave station,
A transmission control signal is transmitted to the slave station, and the slave station performs transmission control based on the transmission control signal,
Together with the call request signal is performed to identify the position performs identification of the slave station as the identification signal of the slave station and said transmission control signal sets the transmission time of the slave station by including a transmission time control signal, The transmission time can be extended
Is what you can do .

In order to achieve the above object, in a transmission control device of a slave station in communication using a single radio, a call request signal installed at the slave station and transmitting a call request signal to a master station. Transmission means, transmission control signal transmission means installed on the master station side for transmitting a transmission control signal for controlling transmission of the slave station in response to the call request signal, and transmission means installed on the slave station side Transmission control means for controlling transmission based on a control signal, wherein the transmission control signal transmission means of the master station comprises transmission time control setting means and transmission time control setting means.
And transmission time extension means capable of extending the transmission time thereof ,
Further, the transmission control means of the slave station has a communicable remaining time display means.

[0007]

Therefore, in the transmission control of the slave station in the communication using the single radio according to the present invention, (1) Since the transmission control of the slave station is performed by the master station, it is the same as the communication in the conventional single radio system. It is no longer necessary to talk while pressing the pre-stroke switch. (2)
In addition, since the transmission and transmission time of the slave station can be controlled by the master station, it is possible to eliminate the problem that the transmission from the slave station unnecessarily interferes with other stations and that the dedicated time for unnecessary radio waves becomes longer. Can be. (3) In addition, transmission from the master station to the slave station can be ensured.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram of a slave station and a master station according to the present invention. In the figure, a slave station A includes a storage box 10 for storing a communication device such as a wireless device, a notification box 20, a solar cell device 14 for obtaining power, an antenna 15, and the like. Control means 2. On the other hand, master station B has transmission control signal transmitting means 3
have.

In the above configuration, communication from the slave station A to the master station B is performed according to the following steps. (1) The slave station A transmits a call request signal to the master station B, and notifies the slave station A that transmission is desired. This call request signal is transmitted by the call request signal transmitting means 1. (2) The master station B receives the call request signal and transmits a transmission control signal for controlling transmission of the slave station A to the slave station A that has transmitted the call request signal. In the transmission control signal, the transmission time during which the slave station A can transmit is added, and the transmission time during which the slave station A can transmit is controlled. The transmission of the transmission control signal of the master station B is performed by the transmission control signal transmitting means 3. (3) The slave station A that has received the transmission control signal can automatically transmit a call to the master station B immediately after receiving the transmission control signal. The talk time of the slave station A is set by the transmission time added to the transmission control signal from the master station B, and a call can be made to the master station B only during the transmission time. (4) When the transmission time elapses and the communication is completed, the transmission of the slave station A is forcibly ended by the end signal from the master station B.

Next, the configurations of the slave station A and the master station B for realizing the communication step will be described below.

First, the slave station A will be described. FIG. 2 is a configuration block diagram of the slave station A. The slave station A has a storage box 10
, A notification box 20, a power supply for the solar cell device 14 and the like, an antenna 15 and the like.

The user operates the notification box 20 of the slave station A to drive the wireless device in the storage box 10 to communicate with the master station B.

The storage box 10 is formed of a waterproof box and stores a wireless device 11, a control unit 12, a power supply control unit 13, and the like. The wireless device 11 and the control unit 12 include a power control unit 13
Power is supplied from a power supply such as the solar cell device 14 via the. The power source is not limited to the solar cell device 14, but in a facility that is installed outdoors and has a low operating rate, it is efficient to store power using the solar cell device 14 or the like.

The notification box 20 is provided in the storage box 1.
Similarly to the case 0, it is formed of a waterproof box, and accommodates the notification start switch 21, the display unit 22, and the microphone 23, and is connected to the control unit 12.

The operation of the slave station A having the above configuration will be described below. The operation of the slave station A is started by pressing the notification start switch 21. The drive signal of the message start switch 21 drives the control unit 12 to output the ID code unique to the slave station A to the wireless device 11.
And calls the parent station B. The ID code unique to the slave station A becomes a call request signal, and requests the master station B for a call. Further, the response signal from master station B received by wireless device 11 is demodulated by control unit 12, and the call time is displayed on the display unit. The user's call from the microphone 23 is transmitted to the control unit 1.
2, and transmitted from the wireless device 11 to the master station B. The transmission time of the slave station A is controlled by the transmission control signal from the control unit 12, and the transmission control signal including the transmission time is set by the transmission control signal transmitted from the master station B.

Next, the master station B will be described. FIG. 3 is a configuration block diagram of the master station B. The master station B has a radio 31,
Control unit 32, display unit 33, speaker 34, antenna 3
6, a microphone 35, a power supply and the like.

The master station B is always in a state of waiting for reception from the slave station A, and starts driving upon receiving a call request signal from the slave station A.

The operation of the master station B having the above configuration will be described below. The driving of the master station B is started by receiving the call request signal of the slave station A from the antenna 36. Display unit 33 of master station B
Indicates the slave station A requesting a call by displaying the ID code of the slave station A. When making a call with the slave station A requesting the call, the control unit 32 modulates the voice to make a call to the slave station A, sets a transmission time , and transmits a control signal including the transmission time. , And control the call of the slave station A. The call from the slave station A and received via the antenna 36 and radio 31 control part 32
Through the speaker 34.

Next, the procedure of a call between the slave station A and the master station B will be described with reference to a signal diagram between the slave station A and the master station B in FIG.

First, a case where there is a call request from one slave station A1 will be described.

Steps S1 and S2: When the notification start switch 21 of the slave station A1 is pressed, the controller 12
Automatically transmits the ID code unique to the slave station A1 via the wireless device 11 and the antenna 15. The notification start switch 21 also functions as a power switch. The ID code identifies the slave station A1, and in the case of a facility where the slave station A1 is fixed, also functions as a position code of the slave station A1. The signal is an M signal used in wireless data transmission or the like.
An SK signal (minimum deviation modulation signal) is used.

Steps S3 and S4: The control unit 32 of the master station B receives the signal from the slave station A1, displays the ID code (position code) of the slave station A1 on the display unit 33, and generates an alarm sound. .

Steps S5 and S6: The communicator of the master station B hears the incoming call alarm sound, transmits a transmission control signal including a transmission time control signal, and responds by voice. The transmission time control signal controls the transmission time of the slave station A1, and the talk time at the slave station A1 is set by the transmission time control signal and cannot be set at the slave station A1.

Steps S7 and S8: The slave station A1 receives the transmission control signal of the master station B, and when the transmission control signal from the master station B ends, automatically enters the transmission mode and switches on the microphone 23. The caller can talk to the master station B only by speaking into the microphone 23. At this time, the remaining callable time is also displayed on the display unit 22 of the slave station A1. If the time is not enough, inform the master station
And the transmission control signal is again received from the master station B to extend the transmission time.

[0026] Step S9 and Step S 10: When the slave station A1 has finished communication content needed, control unit 32 of the master station B transmits a termination control signal to the slave station A1. Slave station A
Reference numeral 1 denotes a power control unit 1 which transmits the end control signal via the wireless device 11.
The power of the slave station A1 is turned off under the control of 3. Master station B
Is in a standby state waiting for the next call request from the slave station A.

Next, a case where there is a call request from two slave stations A1 and A2 will be described with reference to FIG.

First, the slave station A1 is received from the two slave stations A1 and A2, and a call is made between the slave station A1 and the master station B in steps S1 to S10. On the other hand, the slave station A
During communication with No. 1, since the call of the slave station A2 is not accepted due to single radio, the calling slave station A2 is in the standby state while transmitting the ID code.

After the call with the slave station A1 is completed, the master station B turns off the power of the slave station A1 and waits for the next call request. When the call with the slave station A1 is completed, the slave station A2
Sends an ID code and is in a standby state, the master station B performs a call according to the same steps as steps S1 to S10.

Further, when extending a call, for example, the following steps can be performed. An example of steps for extending a call will be described with reference to FIG.

The slave station A2 performs a call from step S11 to step S18 in the same manner as in the procedure of steps S1 to S8. At the end of step S18, a case where a call is extended by a request to extend the call from the slave station A2 or by the judgment of the master station B will be described. The following is an example of the steps.

Step S19: The master station B sends a transmission control signal including a transmission time control signal instead of the end control signal of step S9.

Steps S20 and S21: The slave station A2 receives the transmission control signal of the master station B, maintains the transmission mode by the transmission control signal from the master station B,
Switch is turned on. The caller continues the call to the master station B toward the microphone 23. At this time, the second call remaining time is also displayed on the display unit 22 of the slave station A2.

Steps S22 and S23: When the slave station A2 completes communication of necessary contents, the control section 32 of the master station B transmits an end control signal to the slave station A2. Slave station A
Reference numeral 2 denotes a power control unit which transmits the end control signal via the wireless device 11.
The power of the slave station A2 is turned off under the control of 3. Master station B
Is in a standby state waiting for the next call request from the slave station A.

Next, a transmission control method for a slave station according to the present invention and a usage example of the apparatus will be described with reference to an installation diagram of an emergency communication device shown in FIG.

[0036] In the figure, emergency contact device to be installed in a cycling course, and the master station B, which is installed in the management office, is set location to emergency post of course the way various parts of the plurality of stations along the cycling course It is configured by slave station A. The user calls the management office of the master station B using the slave station A in the middle of the cycling course, and makes a call. The communication person at the management office listens to the communication sound, transmits the transmission time control signal, and responds by voice. The slave station receives the signal of the master station, and when the signal from the master station ends, automatically enters the transmission mode and turns on the microphone switch. The caller can talk to the administration office simply by speaking into the microphone. At this time,
The remaining callable time is also displayed on the display of the slave station.
If you run out of time, you can extend it by contacting the management office. When the communication of the necessary contents is completed, the power of the slave station is turned off through the wireless device by a termination operation from the control unit of the master station, and the standby state is set.

It should be noted that the present invention is not limited to the above-described embodiment, and various modifications are possible based on the spirit of the present invention, and they are not excluded from the scope of the present invention.

[0038]

As described above in detail, according to the present invention, (1) since the transmission control of the slave station is performed by the master station, the pre-stroke switch is used as in the communication in the conventional single radio system. No more pressing and talking. (2) In addition, since the transmission and transmission time of the slave station can be controlled by the master station, continuing transmission from the slave station unnecessarily may interfere with other stations or increase the dedicated time for useless radio waves. Can be eliminated. (3) By providing the transmission time extending means , transmission from the master station to the slave station can be ensured.

[Brief description of the drawings]

FIG. 1 is a block diagram of a slave station and a master station according to the present invention.

FIG. 2 is a configuration block diagram of a slave station A of the present invention.

FIG. 3 is a configuration block diagram of a master station B of the present invention.

FIG. 4 is a signal diagram between a slave station A and a master station B according to the present invention.

FIG. 5 is an installation diagram of an emergency contact device using the transmitting device of the slave station according to the present invention.

[Explanation of symbols]

A slave station B master station 1 call request signal transmitter 2 transmits the control means 3 transmit the control signal transmitting unit 10 receiving box 11 and 31 radio 12,32 controller 13 power supply control unit 14 photovoltaic devices 15 and 36 antenna 20 Problem Box 21 Notification activation SW 22, 33 Display unit 23, 35 Microphone 34 Speaker

Claims (5)

(57) [Claims] 1. A method of controlling transmission of a slave station in communication using a single radio, wherein: (a) a master station transmits a transmission control signal to the slave station after receiving a call request signal of the slave station; and, (b) said child station have line transmission control based on the transmission control signal, (c) the transmission control signal includes a transmission time control signal, said
The transmission time of the slave station is set by the transmission time control signal.
A transmission control method for a slave station , wherein the set time can be extended . 2. The transmission control method for a slave station according to claim 1, wherein the call request signal is an identification signal of the slave station. 3. A transmission control device for a slave station in communication using a single radio, comprising: (a) a call request signal transmission means installed on the slave station side for transmitting a call request signal to a master station; (C) transmission control signal transmission means installed on the master station side for transmitting a transmission control signal for controlling transmission of the slave station in response to the call request signal; and (c) installing the transmission control signal on the slave station side. Transmission control means for controlling transmission based on a control signal ; (d) the transmission control signal includes a transmission time control signal;
Set the transmission time of the slave station by the transmission time control signal
Transmission time extension means for extending the transmission time
Transmission control apparatus for a slave station, characterized in that that consists of a stage. 4. The transmission control device for a slave station according to claim 3 , wherein the transmission control signal transmission means of the master station includes a transmission time control setting means. Transmission control means wherein the slave station includes a transmission control device of a slave station of claim 3 having a communicatable remaining time display means.